24LC01BHT-I/ST

Memory IC Overview

The Microchip Technology 24LC01BHT-I/ST is a 1 Kbit (128 x 8) Electrically Erasable PROM featuring an I²C-compatible 2-wire serial interface. It operates on a single supply voltage ranging from 2.5V to 5.5V with low-power CMOS technology, drawing a maximum of 1 mA during read operations and 1 μA in standby mode. The device supports clock frequencies up to 400 kHz and includes hardware write-protect capabilities for half the array. It offers high endurance exceeding one million erase/write cycles and data retention greater than 200 years.

Memory IC Feature Summary

• Hardware write-protect functionality allows locking the upper half of the memory array via the WP pin.
• Schmitt trigger inputs and output slope control provide noise suppression and eliminate ground bounce.
• Supports page write operations for up to eight bytes of data to improve bus throughput.
• Includes acknowledge polling capability to maximize bus efficiency during internal write cycles.

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters
• Industrial control devices needing reliable data logging
• Consumer electronics utilizing low-voltage power supplies
• Automotive applications operating within extended temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the package type matches the required footprint, as this part number indicates a specific surface-mount variant. Ensure the design accounts for the 2.5V minimum supply voltage requirement distinct from lower-voltage counterparts. Cross-reference the datasheet revision to confirm pinout compatibility with existing layouts.

Memory IC Selection Notes

Select this component when a 1 Kbit capacity with I²C interface is required alongside hardware write protection for critical data segments. It is suitable for designs operating between 2.5V and 5.5V where low standby current is essential. Consider the TSSOP or similar surface-mount package availability if space constraints exist. Compare against the 24AA01H series if operation below 2.5V is necessary, as that variant supports down to 1.7V.

Memory IC Part Context

This device belongs to the 24XX01H family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with other members like the 24LC01BH-E/MNY but differs in package and temperature rating. The 'HT' suffix typically denotes a specific tape-and-reel surface mount packaging option within the broader product line designed for automated assembly processes.

Memory IC Replacement Considerations

Direct substitutes include the 24LC01BH-E/MNY for automotive grade requirements or the 24LC01B-I/SN for SOIC packaging. Verify electrical characteristics match, particularly the 2.5V minimum VCC threshold. Ensure the replacement maintains the same I²C addressing scheme and page size limitations.